Photocatalytic degradation of methylene blue on Sn-doped titania nanoparticles synthesized by solution combustion route
- Catalysis Division, National Chemical Laboratory, Pune 411008 (India)
- Center for Material Characterization, National Chemical Laboratory, Pune 411008 (India)
- Department of Chemistry, Shivaji University, Kolhapur 416004, MS (India)
Highlights: • Series of Sn-doped titania nanoparticles were prepared by solution combustion synthesis method. • Sn-doped titania nanoparticles were tested for degradation of MB under UV light irradiation. • The maximum Sn doping in the TiO{sub 2} lattice is found to be less than 10%. • The crystallite size decreases with increase in the Sn content. • The doping of Sn into TiO{sub 2} lattice hinders the recombination of electrons and holes thus enhance the photocatalytic activity. - Abstract: Series of tin-doped titania nanoparticles with varying tin content in the range 0–20 mol% have been prepared by solution combustion synthesis route using urea as a fuel. The structure, surface morphology and optical activity of Sn-doped TiO{sub 2} nanoparticles were investigated by various analytical techniques such as powder XRD, SEM, TEM, UV–vis and N{sub 2} adsorption study. The crystalline structures of the various phases were studied by rietveld refinement of the XRD data. The photocatalytic performance of Sn-doped titania nanoparticles were tested for degradation of MB under UV and visible light irradiation. The results reveal that the photocatalytic activity increases with increase in tin content which may be due to decrease in crystallite size with increase in surface area. The doping of Sn into TiO{sub 2} lattice hinders the recombination of electrons and holes thus enhance the quantum efficiency of photocatalytic reaction.
- OSTI ID:
- 22581504
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 76; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
77 NANOSCIENCE AND NANOTECHNOLOGY
ADSORPTION
COMBUSTION
DOPED MATERIALS
HOLES
IRRADIATION
METHYLENE BLUE
MORPHOLOGY
NANOPARTICLES
NANOSTRUCTURES
OPTICAL ACTIVITY
PHOTOCATALYSIS
QUANTUM EFFICIENCY
RECOMBINATION
SCANNING ELECTRON MICROSCOPY
SOLUTIONS
SURFACE AREA
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET RADIATION
X-RAY DIFFRACTION